TSP makes a great paint remover. Years ago(60's) in Popular Mechanics, they
had an article about mixing TSP (can't remember the mix ratio) and water.
Heating it up to just below boiling, and use as a paint remover. I tried it in
the late 70's and it took lots of coats of paint off an old childs chair. I
truned a neighbor on to it, as he restored old houses, and after trying it, had
a tank made that he could put loovered shutters and doors in, with a propane
burner below it.
It saved him mega hours work. It works!
PS: If you leave things in long the wood turns to pulp!